Added the possibility to generate a blockchain proof of existence

Former-commit-id: 02ad83f7343f5a270cb1c3052f0bcf1aebd9a13e

_locales/de/messages.json

@@ -383,6 +383,10 @@
 		"message": "In die Zwischenablage speichern",
 		"description": "Options page label: 'save to clipboard'"
 	},
+	"optionAddProof": {
+		"message": "Existenzberechtigung hinzufügen",
+		"description": "Options page label: 'add proof of existence'"
+	},
 	"optionSaveToGDrive": {
 		"message": "In Google Drive speichern",
 		"description": "Options page label: 'save to Google Drive'"

_locales/en/messages.json

@@ -383,6 +383,10 @@
 		"message": "save to clipboard",
 		"description": "Options page label: 'save to clipboard'"
 	},
+	"optionAddProof": {
+		"message": "add proof of existence",
+		"description": "Options page label: 'add proof of existence'"
+	},
 	"optionSaveToGDrive": {
 		"message": "save to Google Drive",
 		"description": "Options page label: 'save to Google Drive'"

_locales/es/messages.json

@@ -383,6 +383,10 @@
 		"message": "guardar en el portapapeles",
 		"description": "Options page label: 'save to clipboard'"
 	},
+	"optionAddProof": {
+		"message": "añadir prueba de existencia",
+		"description": "Options page label: 'add proof of existence'"
+	},
 	"optionSaveToGDrive": {
 		"message": "save en Google Drive",
 		"description": "Options page label: 'save to Google Drive'"

_locales/fr/messages.json

@@ -383,6 +383,10 @@
 		"message": "sauvegarder dans le presse-papiers",
 		"description": "Options page label: 'save to clipboard'"
 	},
+	"optionAddProof": {
+		"message": "ajouter une preuve d'existence",
+		"description": "Options page label: 'add proof of existence'"
+	},
 	"optionSaveToGDrive": {
 		"message": "sauvegarder dans Google Drive",
 		"description": "Options page label: 'save to Google Drive'"

_locales/ja/messages.json

@@ -383,6 +383,10 @@
 		"message": "クリップボードに保存する",
 		"description": "Options page label: 'save to clipboard'"
 	},
+	"optionAddProof": {
+		"message": "add proof of existence",
+		"description": "Options page label: 'add proof of existence'"
+	},
 	"optionSaveToGDrive": {
 		"message": "Google Drive に保存",
 		"description": "Options page label: 'save to Google Drive'"

_locales/pl/messages.json

@@ -383,6 +383,10 @@
 		"message": "zapisuj do schowka",
 		"description": "Options page label: 'save to clipboard'"
 	},
+	"optionAddProof": {
+		"message": "add proof of existence",
+		"description": "Options page label: 'add proof of existence'"
+	},
 	"optionSaveToGDrive": {
 		"message": "zapisuj na Dysku Google",
 		"description": "Options page label: 'save to Google Drive'"

_locales/ru/messages.json

@@ -383,6 +383,10 @@
 		"message": "сохранить в буфер обмена",
 		"description": "Options page label: 'save to clipboard'"
 	},
+	"optionAddProof": {
+		"message": "add proof of existence",
+		"description": "Options page label: 'add proof of existence'"
+	},
 	"optionSaveToGDrive": {
 		"message": "сохранить на Google Drive",
 		"description": "Options page label: 'save to Google Drive'"

_locales/uk/messages.json

@@ -383,6 +383,10 @@
 		"message": "зберегти в буфер обміну",
 		"description": "Options page label: 'save to clipboard'"
 	},
+	"optionAddProof": {
+		"message": "add proof of existence",
+		"description": "Options page label: 'add proof of existence'"
+	},
 	"optionSaveToGDrive": {
 		"message": "save to Google Drive",
 		"description": "Options page label: 'save to Google Drive'"

_locales/zh_CN/messages.json

@@ -383,6 +383,10 @@
 		"message": "保存到剪切板",
 		"description": "Options page label: 'save to clipboard'"
 	},
+	"optionAddProof": {
+		"message": "add proof of existence",
+		"description": "Options page label: 'add proof of existence'"
+	},
 	"optionSaveToGDrive": {
 		"message": "save to Google Drive",
 		"description": "Options page label: 'save to Google Drive'"

_locales/zh_TW/messages.json

@@ -383,6 +383,10 @@
 		"message": "保存到剪切板",
 		"description": "Options page label: 'save to clipboard'"
 	},
+	"optionAddProof": {
+		"message": "add proof of existence",
+		"description": "Options page label: 'add proof of existence'"
+	},
 	"optionSaveToGDrive": {
 		"message": "save to Google Drive",
 		"description": "Options page label: 'save to Google Drive'"

extension/core/bg/autosave.js

@@ -21,7 +21,7 @@
  *   Source.
  */
 
-/* global singlefile, URL, Blob */
+/* global singlefile, URL, Blob, woleet */
 
 singlefile.extension.core.bg.autosave = (() => {
 
@@ -129,6 +129,9 @@ singlefile.extension.core.bg.autosave = (() => {
 				pageData.url = URL.createObjectURL(blob);
 				await singlefile.extension.core.bg.downloads.downloadPage(pageData, options);
 			}
+			if (pageData.hash) {
+				await woleet.anchor(pageData.hash);
+			}
 		} finally {
 			singlefile.extension.core.bg.business.onSaveEnd(message.taskId);
 			if (pageData && pageData.url) {

extension/core/bg/config.js

@@ -78,6 +78,7 @@ singlefile.extension.core.bg.config = (() => {
 		groupDuplicateImages: true,
 		saveRawPage: false,
 		saveToClipboard: false,
+		addProof: false,
 		saveToGDrive: false,
 		forceWebAuthFlow: false,
 		extractAuthCode: true,

extension/core/bg/downloads.js

@@ -21,7 +21,7 @@
  *   Source.
  */
 
-/* global browser, singlefile, Blob, URL, document, GDrive */
+/* global browser, singlefile, Blob, URL, document, GDrive, woleet */
 
 singlefile.extension.core.bg.downloads = (() => {
 
@@ -60,6 +60,9 @@ singlefile.extension.core.bg.downloads = (() => {
 			return {};
 		}
 		if (message.method.endsWith(".end")) {
+			if (message.hash) {
+				await woleet.anchor(message.hash);
+			}
 			singlefile.extension.core.bg.business.onSaveEnd(message.taskId);
 			return {};
 		}

extension/lib/woleet/woleet.js

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2010-2019 Gildas Lormeau
+ * contact : gildas.lormeau <at> gmail.com
+ * 
+ * This file is part of SingleFile.
+ *
+ *   The code in this file is free software: you can redistribute it and/or 
+ *   modify it under the terms of the GNU Affero General Public License 
+ *   (GNU AGPL) as published by the Free Software Foundation, either version 3
+ *   of the License, or (at your option) any later version.
+ * 
+ *   The code in this file is distributed in the hope that it will be useful, 
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero 
+ *   General Public License for more details.
+ *
+ *   As additional permission under GNU AGPL version 3 section 7, you may 
+ *   distribute UNMODIFIED VERSIONS OF THIS file without the copy of the GNU 
+ *   AGPL normally required by section 4, provided you include this license 
+ *   notice and a URL through which recipients can access the Corresponding 
+ *   Source.
+ */
+
+/* global fetch */
+
+this.woleet = this.woleet || (() => {
+
+	const urlService = "https://api.woleet.io/v1/anchor";
+	const apiKey = "__WOLEET_API_KEY__";
+
+	return {
+		anchor
+	};
+
+	async function anchor(hash) {
+		return (await fetch(urlService, {
+			method: "POST",
+			headers: {
+				"Accept": "application/json",
+				"Content-Type": "application/json",
+				"Authorization": "Bearer " + apiKey
+			},
+			body: JSON.stringify({
+				"name": hash,
+				"hash": hash,
+				"public": true
+			})
+		})).json();
+	}
+
+})();

extension/ui/bg/ui-options.js

@@ -36,6 +36,7 @@
 	const removeScriptsLabel = document.getElementById("removeScriptsLabel");
 	const saveRawPageLabel = document.getElementById("saveRawPageLabel");
 	const saveToClipboardLabel = document.getElementById("saveToClipboardLabel");
+	const addProofLabel = document.getElementById("addProofLabel");
 	const saveToGDriveLabel = document.getElementById("saveToGDriveLabel");
 	const compressHTMLLabel = document.getElementById("compressHTMLLabel");
 	const compressCSSLabel = document.getElementById("compressCSSLabel");
@@ -106,6 +107,7 @@
 	const removeScriptsInput = document.getElementById("removeScriptsInput");
 	const saveRawPageInput = document.getElementById("saveRawPageInput");
 	const saveToClipboardInput = document.getElementById("saveToClipboardInput");
+	const addProofInput = document.getElementById("addProofInput");
 	const saveToGDriveInput = document.getElementById("saveToGDriveInput");
 	const compressHTMLInput = document.getElementById("compressHTMLInput");
 	const compressCSSInput = document.getElementById("compressCSSInput");
@@ -403,6 +405,7 @@
 	removeScriptsLabel.textContent = browser.i18n.getMessage("optionRemoveScripts");
 	saveRawPageLabel.textContent = browser.i18n.getMessage("optionSaveRawPage");
 	saveToClipboardLabel.textContent = browser.i18n.getMessage("optionSaveToClipboard");
+	addProofLabel.textContent = browser.i18n.getMessage("optionAddProof");
 	saveToGDriveLabel.textContent = browser.i18n.getMessage("optionSaveToGDrive");
 	compressHTMLLabel.textContent = browser.i18n.getMessage("optionCompressHTML");
 	compressCSSLabel.textContent = browser.i18n.getMessage("optionCompressCSS");
@@ -578,6 +581,7 @@
 		saveRawPageInput.checked = profileOptions.saveRawPage;
 		saveToClipboardInput.checked = profileOptions.saveToClipboard && !profileOptions.saveToGDrive;
 		saveToClipboardInput.disabled = profileOptions.saveToGDrive;
+		addProofInput.checked = profileOptions.addProof;
 		saveToGDriveInput.checked = profileOptions.saveToGDrive && !profileOptions.saveToClipboard;
 		saveToGDriveInput.disabled = profileOptions.saveToClipboard;
 		compressHTMLInput.checked = profileOptions.compressHTML;
@@ -650,6 +654,7 @@
 				removeScripts: removeScriptsInput.checked,
 				saveRawPage: saveRawPageInput.checked,
 				saveToClipboard: saveToClipboardInput.checked,
+				addProof: addProofInput.checked,
 				saveToGDrive: saveToGDriveInput.checked,
 				compressHTML: compressHTMLInput.checked,
 				compressCSS: compressCSSInput.checked,

extension/ui/pages/help.html

@@ -369,6 +369,35 @@
 							computer. Checking this option will force the "File name" options to be disabled.</p>
 						<p class="notice">It is recommended to <u>uncheck</u> this option</p>
 					</li>
+					<li data-options-label="addProofLabel"> <span class="option">Option: add proof od existence</span>
+						<p>Check this option to create a worldwide proof of the existence of the page you want to save.
+						</p>
+						<ul>
+							<li>
+								<strong>What is a proof of existence (data anchoring)?</strong><br>
+								Data anchoring consists in building a time-stamped proof of existence for a data by
+								linking it to a tamper resistant and time-stamped blockchain. Data anchoring
+								implementation relies on the resilience and immutability of the Bitcoin blockchain
+								to provide the best possible security level
+							</li>
+							<li>
+								<strong>How does this protect my data?</strong><br>
+								The anchoring mechanism only handles data impressions. Your data remains where you
+								calculate the fingerprints, i.e. in the browser. Their confidentiality is totally
+								preserved.
+							</li>
+							<li>
+								<strong>
+									The day after your backup you can get freely the proof receipt here: <a
+										href="https://gildas-lormeau.github.io/singlefile-woleet/index.html">gildas-lormeau.github.io/singlefile-woleet/index.html</a>.
+									A proof receipt will be used to verify the validity of the evidence
+								</strong>
+							</li>
+						</ul>
+						<p>
+							More information <a href="https://doc.woleet.io">doc.woleet.io</a>
+						</p>
+					</li>
 					<li data-options-label="saveToGDriveLabel"> <span class="option">Option: save to Google Drive</span>
 						<p>Check this option to save the page on Google Drive instead of downloading it on your
 							computer. Checking this option will force some "File name" options to be disabled.

extension/ui/pages/options.html

@@ -214,6 +214,10 @@
 				<label for="saveToClipboardInput" id="saveToClipboardLabel"></label>
 				<input type="checkbox" id="saveToClipboardInput">
 			</div>
+			<div class="option">
+				<label for="addProofInput" id="addProofLabel"></label>
+				<input type="checkbox" id="addProofInput">
+			</div>
 			<div class="option">
 				<label for="saveToGDriveInput" id="saveToGDriveLabel"></label>
 				<input type="checkbox" id="saveToGDriveInput">

manifest.json

@@ -8,7 +8,7 @@
 		"64": "extension/ui/resources/icon_64.png",
 		"128": "extension/ui/resources/icon_128.png"
 	},
-	"version": "1.13.32",
+	"version": "1.14.0",
 	"description": "__MSG_extensionDescription__",
 	"content_scripts": [
 		{
@@ -83,6 +83,7 @@
 			"extension/lib/single-file/fetch/bg/fetch.js",
 			"extension/lib/single-file/frame-tree/bg/frame-tree.js",
 			"extension/lib/single-file/lazy/bg/lazy-timeout.js",
+			"extension/lib/woleet/woleet.js",
 			"extension/lib/gdrive/gdrive.js",
 			"extension/core/bg/config.js",
 			"extension/core/bg/tabs-data.js",